Higher order effects in beam-beam deflection
Journal
Nuclear Instruments and Methods in Physics Research Section A
Journal Volume
323
Journal Issue
3
Pages
569-579
Date Issued
1992
Author(s)
Yu-Chiu Chao
Abstract
Beam-beam deflection scan is a useful tool, both in the SLC and in future linear colliders, for extracting information about the beam position, size and luminosity. This technique poses nontrivial challenges to the instrumentation in its own right. The understanding of all aspects of beam-beam deflection, in particular that of disruption, is therefore crucial to a successful implementation of this technique. When disruption effects become strong mainly due to increased beam intensity per bunch, the simple rigid-bunch formula for beam-beam deflection is no longer valid. In this report we discuss the general modification to the rigid beam-beam deflection formula in the presence of disruption using various methods including analytical calculation, rigid and semi-rigid two-disk models, and simulation. The impact on the realistic beam-beam deflection in the SLC is also discussed. © 1992.
Type
journal article